Simpelfilter - tips and tools for imaging applications

• basics
• analysis
• imaging
• color management

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Welcome to the SimpelFilter home-page!

On this website you will find useful filters, tools and information about digital photography and imaging.

 

Basics

Information, articles and book excerpts on various digital imaging topics.

Analysis

Filters and testing kits for analyzing images and imaging tools.

Imaging

Filters that do not exist in your imaging application (in this way). SimpelFilters do not feature bizarre imaging effects that mostly get very boring easily, but solid basic functionality like grayscale conversion, color shifting, etc. Their focus has been placed on easiness and usability.

Color management

Until now, in this section you will find information and tools for display calibration.

The filters at a glance

SF Maskerade

The filter SF Maskerade serves for creating luminance masks, color masks, saturation masks, edge masks and contrast masks. You can also extract channels, select colors very precisely in consideration of saturation and lightness, select only the black, white and gray tones of an image, transform photos into outline drawings and much more. Finally you get the result (optionally inverted or blurred) as gray tone mask or converted into layer's transparency channel. Version 3.3 works in 16 bit color depth per channel and supports automatization functions like Photoshop Actions. In addition to the full version a freeware version with fewer functions is available.

SF TransluSense

With SF TransluSense you can decrease or completly remove the existing transparency of an image or - in opposition - transform selected colors or the lightness of the pixels into transparency. Likewise it is possible to transform the transparency of pixels in a gray tone mask. This will separate the color information and transparency of the image and has much advantages for later image processing.
Now in version 3.3 with many new features.

 

SF ColorMixer

This "somehow different" channel mixer is not only useful if your imaging software is missing a channel mixer, but tops the channel mixers of some professional imaging programs too. The built-in auto balance guarantees in every case a well-balanced mixing ratio of the channels and avoids the clipping of shadows or highlights. You can easily reach fine or extreme color changes without heeding for the 100% sum of the channels. In addition you can fix a selected color with the ColorFix option and therefore protect this color for later alteration.
Now in version 3.3 with many new features.

SF GrayMixer

The GrayMixer converts color images into amazing gray tone images. You can fully control the lightness of the colors in the resulting gray tone image and for example darken a lightblue sky dramatically. Likewise, in the ColorMixer, the built-in ColorFix option avoids alteration of the lightness of a selected color, if you want.
Now in version 3.3 with many new features.

SF Color Space Converter

The Color Space Converter is a "beta version" but works fine if you wish to convert a RGB image into HSL or HSB color space and vice versa. You get the special "Photoshop saturation" and luminance by selecting "HsY" color space. The other color space options are for experimental purposes because they ignore the color profile and gamma of the image.

Counting image colors

This filter (without dialogues) shows the number of different colors in an image.

Testing tools

Two other tools, with the help of special test images, serve for measuring the alteration of gradation and local contrast during image processing.

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